Fabrication and characterization of Ag/polymer nanocomposite films through layer-by-layer self-assembly technique

Liu, Xiaohong; Wang, Jinqing; Zhang, Junyan; Liu, Bin; Zhou, Jinfang; Yang, Shanglu

doi:10.1016/j.tsf.2007.03.054

Cited by 20 publications

(10 citation statements)

References 28 publications

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“…WCA measurement is a simple, useful and sensitive tool to gain insights into the chemical nature of material surface 20, 21. The variation of WCA for the ZrO 2 /PDA multialyers is shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Mechanical property and corrosion resistance of zirconia/polydopamine nanocomposite multilayer films fabricated via a novel non‐electrostatic layer‐by‐layer assembly technique

Wang

Qiu

et al. 2011

Surface & Interface Analysis

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and Shengrong Yang a Zirconia/polydopamine (ZrO 2 /PDA) nanocomposite multilayer films were constructed on Si substrate via a novel nonelectrostatic layer-by-layer (NELBL) assembly technique. The building block of this technique is the newly reported dopamine molecule, which can be attached to almost all material surfaces and undergo oxidation-polymerization to form PDA layers; more importantly, the outer hydroxyl groups of the PDA layer can chelated with certain inorganic oxide nanoparticles to generate oxide films. Thus, ZrO 2 /PDA nanocomposite multilayer films were fabricated by sequential NELBL deposition of PDA and ZrO 2 nanoparticles. The formation of the ZrO 2 /PDA nanocomposite multilayer films was monitored by the water contact angle (WCA) and ellipsometric thickness measurements, while the microstructure of the fabricated films was analyzed by means of atomic force microscope (AFM), field emission scanning electron microscope (FESEM), X-ray photoelectron spectrum (XPS), and X-ray diffraction (XRD) analysis. The mechanical and anticorrosion behaviors of the annealed ZrO 2 /PDA nanocomposite multilayers were found to be greatly enhanced as compared with that of the annealed homogeneous ZrO 2 film. The better mechanical and anticorrosion behaviors of the annealed ZrO 2 /PDA nanocomposite multilayers than the annealed homogeneous ZrO 2 film may be closely related to their special microstructure. Namely, the organic-inorganic hybrid microstructure of the annealed ZrO 2 /PDA nanocomposite multilayers may largely account for the increased nanohardness and corrosion resistance. Copyright

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Section: Resultsmentioning

confidence: 99%

Mechanical property and corrosion resistance of zirconia/polydopamine nanocomposite multilayer films fabricated via a novel non‐electrostatic layer‐by‐layer assembly technique

Wang

Qiu

et al. 2011

Surface & Interface Analysis

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“…Another advantage of the Ag thin films is the considerable amount of reflectance in the whole area of infra-red and visible region. [16][17][18] Many efforts have been directed towards the preparation of Ag thin films with narrow thickness such as sol-gel, RF magnetron sputtering, chemical precipitation, improved successive ionic layer adsorption and reaction and electron beam evaporation techniques. [19][20][21][22][23] The e-beam evaporation technique is an effective tool in fabricating of thin films with control the thickness and quality for various applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of post-annealing treatment on the wetting, optical and structural properties of Ag/Indium tin oxide thin films prepared by electron beam evaporation technique

Azizian‐Kalandaragh¹,

Nouhi²,

Amiri³

2015

mat express

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In this approach, Ag thin films have been prepared using electron beam evaporation technique onto a thin film of tin-doped indium oxide coated ordinary glass substrate. The fabricated thin films were annealed in various temperatures: 100, 200, 300 and 400 C and the effect of annealing on their wetting, structural and morphological properties has been investigated. Scanning electron microscopy (SEM), UV-Visible spectroscopy (UV-Vis), diffuse reflectance spectroscopy (DRS), X-ray diffraction (XRD) and contact angle measurement have been applied for the characterization and study of thin film surfaces. The results of SEM exhibit the aggregation and formation of Ag nanoparticles on the surface of substrate changed through increasing of annealing temperature. The presence of mixed In 2 O 3 -Ag phases in the as-prepared and annealed samples was confirmed by XRD pattern. Optical behavior of thin films was followed by using diffuse reflectance spectroscopy. Wettability studies showed that the contact angle of prepared thin films was influenced by various parameters such as annealing temperature, surface morphology and composition of thin films.

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“…A simple, widely used method for the construction of ultrathin NP multilayers is provided by the electrostatic layer-by-layer (LbL) assembly of NPs with polyelectrolytes. − The film assembles by electrostatic interactions between positively and negatively charged species, enabling the creation of multilayer structures in a stepwise fashion. The primary driving force is assumed to be entropy associated with the release of counterions. ,,− One of the advantages of using polymers for NP assembly is the possibility of applying a variety of macromolecules with different properties, such as conducting or redox-active polymers .…”

Section: Introductionmentioning

confidence: 99%

Versatile Scheme for the Step-by-Step Assembly of Nanoparticle Multilayers

Chaikin¹,

Leader²,

Popovitz‐Biro³

et al. 2011

Langmuir

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A versatile scheme for the preparation of nanoparticle (NP) multilayers is presented. The method is based on the step-by-step assembly of NPs and bishydroxamate disulfide ligand molecules by means of metal-organic coordination using easily synthesized tetraoctylammonium bromide (TOAB)-stabilized gold NPs. The assembly of NP multilayers was carried out via a Zr(IV)-coordinated sandwich arrangement of the hydroxamate ligands on Au and glass surfaces. The latter were precoated with electrolessly deposited Au clusters to enable binding of the first NP layer. The new method avoids the need to perform elaborate colloid reactions to prepare the NP building blocks. Au NP monolayer and multilayer films prepared in this manner were characterized by UV-vis spectroscopy, atomic force microscopy (AFM), and cross-sectional transmission electron microscopy (TEM), showing a regular growth of NP layers. The use of coordination chemistry as the binding motif between repeat layers allows for the convenient assembly of hybrid nanostructures comprising molecular and NP components. This was demonstrated by the construction of Au NP multilayers with controlled spacing from the surface or between two NP layers. Drying the samples during or after the construction process induces NP aggregation and changes in the film morphology and optical properties.

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Fabrication and characterization of Ag/polymer nanocomposite films through layer-by-layer self-assembly technique

Cited by 20 publications

References 28 publications

Mechanical property and corrosion resistance of zirconia/polydopamine nanocomposite multilayer films fabricated via a novel non‐electrostatic layer‐by‐layer assembly technique

Mechanical property and corrosion resistance of zirconia/polydopamine nanocomposite multilayer films fabricated via a novel non‐electrostatic layer‐by‐layer assembly technique

Effect of post-annealing treatment on the wetting, optical and structural properties of Ag/Indium tin oxide thin films prepared by electron beam evaporation technique

Versatile Scheme for the Step-by-Step Assembly of Nanoparticle Multilayers

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